A tincture is just THC suspended in an alcohol solution. To do it right, you would normally decarboxylate the pot (heat it in an oven to convert all the cannibinoids to THC; I read one article that said 1/2 to 1 hour at 240 degrees F, but look up more info than I did if you plan to do it). I don't do this, though; I just let it dry naturally and jar or bag it until it's all the way dry, opening a few times if the weed needs it. Then I grind the pot and fill a quart mason jar halfway with the ground weed (it absorbs moisture so only fill it halfway). I use a 50% ABV cheap vodka to fill the jar to just about an inch from the top. Then I put it in the freezer for 5 days, shaking it hard 2-3 times a day and putting it back in. Because it's 50% alcohol, it doesn't freeze. I strain it through a cheesecloth set inside of a strainer into another quart jar when it's done (in the 5 days). What this does is break down the resin glands so the THC goes into solution with the vodka. The first 2 times I got a greenish brown unclear solution (some plant material dissolved into it from the weed I used being too dry). And I used trim, so it wasn't very strong. I'm taking all the weed I use after hash oil extractions and kief tumbles and using it for this. It's not too strong because a lot of the glands have been removed from the plant material from the oil process and the kief tumbling, but I do this "soaking" multiple times to increase the potency (I have a tincture in the freezer I just strained into a second jar of dried weed to make it stronger this morning, and I'm going to try straining it into a third jar of trim in 5 more days). About 1/4" of the ones I have now in a Scotch glass and I get a good buzz not from the vodka either
